Question Why my gpu showing blue red dots and then reboots?

[Musaab7]

I bought a used rx560 and tried to install drivers but it hangs on 33% but somehow my friend installed drivers on it but now while i am using pc it starts showing blue red checker(small cubes) and then reboots
Specs
Cpu intel i5-2500k
Gpu xfx rx560
Psu 400w
Ram 6gb

 

[Metal Messiah.]

What's the make and exact MODEL of your PSU ? How old is the GPU ? Are you on Windows 10 OS ?

 

[Musaab7]

What's the make and exact MODEL of your PSU ? How old is the GPU ? Are you on Windows 10 OS ?

Delta 400w psu
I bought a used graphic card so i dont know exact life of gpu
Yes i am using windows 10

 

[XxDarkMario20xX]

The thing is that buying used GPU can go good way or a bad way but looks like you been sold an GPU that has artifacts or it could be that the gpu is overheating so check the temps

 

[Metal Messiah.]

Delta 400w psu

That looks like an average PSU. Not the very best, imo. But can you list the exact Model number of this DELTA power supply ?

while i am using pc it starts showing blue red checker(small cubes)

Most probably your GPU might be faulty, if you are getting artifacts. Most likely a VRAM corruption issue. But, can you post a screenshot of this problem (red cubes/dots) ??

 

[Musaab7]

It happens sometimes not everytime
Average temp of gpu is 86C
tell me how can i test my gpu propely

 

[Musaab7]

The thing is that buying used GPU can go good way or a bad way but looks like you been sold an GPU that has artifacts or it could be that the gpu is overheating so check the temps

Average temp is 86C
How can i test gpu properly

 

[Metal Messiah.]

How can i test gpu properly

Can you check the card on some other PC, using a different PSU, if possible ?